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The term rotary joint is commonly used in two fields.One is the medical field, for example, the elbow joint is a typical rotary joint.The second is the field of mechanical engineering, which is different from translation joints, such as rotating pairs, cylindrical pairs, and spherical pairs can be classified as rotating joints.
"Simple Questions · Six Yuan Zhengji": "The joints are not good for flexing and stretching." Song Yeshi's Dai Shaowang Book: "The Tao guides the joints and makes them think freely." Han Beiping's "African Night Meeting · Unfortunate Encounter": "That guy is so proud that his finger joints rattle."
2. Key;Important links.
Tang Hanyu《The epitaph of Li Jun, the official in the palace》"Qi saidWang YangOgilvy, the joints open, the myriad threads flow, and the mistakes reappear. "brightHu Yinglin"Shaoshi Mountain House Brush Cluster, New Record of Red Lead, 4 · Milling δ": "It is necessary to read more historical biographies, then such things can shine on the source, and insight into the true and false is one of the major joints in learning, which cannot be unknownWei WeiChapter 3 of the third part of the Orient: "Zhou Fu played a role in several joint problems."
3. It refers to secretly offering bribes to collude with officials.
Tang DynastySu EPart I of Du Yang Miscellaneous Compilation:“Yao YingHe is skillful and charming, carries doubts, and is lazy in social affairs. Yao Ying's father, Zongben, and brother, Congyi, differ from Zhao Juan in terms of bribery. "The sixth and second chapters of Outlaws of the Marsh: "Cai FuCai QingThe two agreed to buy the gold secretly, and the joint has been decided. "Guo MoruoThe fourth act of Cai Wenji: "Cao Cao: Hum, isn't this a secret joint?" Refer to Song Wuzeng's "Can Change Fasting Man Record - The Beginning of Things Two".
4. Secret signs.
elementGao WenxiuThe second part of Black Whirlwind: "The woman, he sings a sentence as a joint, and Joe, he should come at once." MingYe XianzuThe fourth part of Yi Shui Han: "I think Yan people don't know Qin's voice, so they can't help but send a joint in the sound of Qin, and I can get away from it!"
5. Instructions.
6. Tactics;Trick.
elementGuan HanqingThe third part of Wangjiang Pavilion: "You came here for business. How did you become a joint?" Yuananonymous personThe fourth chapter of The Fisherman and the Woodcutter's Tale: "What's so hard to see in this joint? It almost makes a family feel bad."
7. It refers to the key point of deliberately pausing in conversation to avoid giving people suspense.
Zhao ShuliSanliwan · Do You Have Noodles: "He sold such a joint, so people naturally have to ask." Scene 4 of Sichuan Opera Tan Ji'er: "Sir, why do you sell joints?"
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The connection between bones is called joint, the one that can move is called "active joint", and the one that cannot move is called "immobile joint".The joints mentioned here refer to the moving joints, such as the shoulder, elbow, finger, hip, knee and other joints of the limbs.Joints are made byArticular capsule、Articular surfaceandArticular cavityComposition.The joint capsule surrounds the joint. The smooth bone inside the joint is called articular surfacecavityPart of it is joint cavity.Normally, there is a small amount of fluid in the joint cavity to reduce friction during joint movement.When the joint is ill, it can increase the fluid in the joint cavity, forming joint effusion and swelling.There are many around the jointmuscleAttach whenMuscle contractionIt can extend, bend, abduct, adduct, and turn around.
The Lingshu Official Acupuncture: "SicknessedemaThose who cannot pass through joints ".Traditional Chinese MedicineThe word "joint" has two different meanings.One is the anatomical name, that is, the joint of bone and bone, which has the function of flexion, extension and rotation, is called joint.For example, shoulder joint, elbow joint, hip joint, finger (toe) joint, etc., and other joints that can not bend, extend, rotate and move are immobile joints, such as lumbosacral joint, sacrococcygeal joint, etc.The other is the name of the chronological order of the development of sore, carbuncle and gangrene.《Orthodox surgery》Volume I says: "The joint is born out of this time" The note says: "For the joint, the Yang sore is closed on the 14th day, and the Yin sore is closed on the 21st day. At this time, the pus must come out, and the potential must not be too crowded. But the purulent side will decay, the decaying side will grow from the muscle, and the muscular side will converge and converge.
